排序方式： 共有21条查询结果，搜索用时 46 毫秒
1.
Policy-makers making decisions on the implementation of school-based sexuality education (SE) programmes face two important questions: (1) what are the costs of implementing and scaling up SE programmes, and (2) what are the impacts? This paper responds to these questions by retrospectively assessing costs, impact and cost-effectiveness of the national school-based SE programme in Estonia 1997–2009. The three-year curriculum had been taught to 190,000 students at the end of 2009. The cost of reaching one student was USD 32.90 and the total costs were USD 5.6 million. There has been a remarkable improvement in sexual health indicators in the age groups 15–19 and 20–24 years in Estonia between 2001 and 2009. During this period, annual abortions, STIs and diagnosed HIV infections in the age groups were reduced by 37%, 55% and 89%, respectively. It is difficult to assess to what extent the improvements in these sexual health indicators are attributable to the SE programme. Nevertheless, our conservative threshold analysis indicates that the Estonian SE programme could be considered cost-saving if only 4% of the observed reductions in HIV infections are attributable to the programme. There is strong evidence, therefore, to support that the Estonian school-based sexuality programme has been cost-effective. 相似文献
2.
Paul Kirschner Marthie Meester Evert Middelbeek Henry Hermans 《Distance Education》1993,14(2):260-282
This study is designed to determine whether, and to what extent, the perceived importance of objectives of undergraduate practicals in the Natural Sciences is dependent upon the type of institute at which practicals are given. The two dimensions used in this research to discriminate between types of institutes are type of education offered (face‐to‐face versus correspondence) and type of programme offered (monodisciplinary versus interdisciplinary). For this reason, distance universities throughout the world (DUs) and more traditional, residential universities (RUs) in The Netherlands were compared. Special attention has been paid to the Open university of The Netherlands (OuN). The results show that RUs and DUs approach practicals in a very similar manner with both of them differing in a number of respects with the OuN. Implications of this research for the use of practicals in a curriculum in the Natural Sciences are presented. 相似文献
3.
The scope of the present study was first to evaluate the cross‐cultural reliability and validity of the Social Emotional Questionnaire (SEQ) and second to estimate and compare the prevalence rates of childhood developmental and psychiatric disorders in the general population of young children in the Netherlands and Greece. To this end, the caregivers of 1748 Dutch and 384 Greek 4–12‐year‐old children from the general population completed the SEQ. The number of children displaying symptoms of childhood developmental disorders was estimated by applying the Diagnostic and Statistical Manual of Mental Disorders‐IV criteria of symptom occurrence. Results showed that the reliability and the construct validity of the SEQ were acceptable in both countries and for all the age‐groups of children. Concerning the prevalence, the Greek children were found to display overall significantly more symptoms of developmental disorders than the Dutch children. However, when the number of children suffering from psychiatric symptoms in the clinical range was estimated using the clinical criteria provided by categorical classification systems, no statistical significant differences emerged between the two countries. This finding suggests that when the criterion of clinical impairment is applied in diagnostic procedures, the number of children suffering from severe psychiatric disorders is about equal in the two countries. The implications of the study are discussed. 相似文献
4.
Vincent Gouttebarge Ruud Jonkers Maarten Moen Evert Verhagen Paul Wylleman Gino Kerkhoffs 《Journal of sports sciences》2017,35(21):2148-2156
The aim of the study was to determine the prevalence and comorbidity of symptoms of common mental disorders (distress, anxiety/depression, sleep disturbance, eating disorders, adverse alcohol use) among current and former Dutch elite athletes, and to explore the inference between potential risk indicators (severe injury, surgery, life events, sport career dissatisfaction, social support) and the outcomes measures under investigation. Cross-sectional analyses were conducted on baseline questionnaires from an ongoing prospective cohort study among 203 current and 282 former elite Dutch athletes (response rate: 28% among current athletes and 95% among former athletes). Based on validated scales, an electronic questionnaire was set up and distributed. Prevalence (4-week) ranged from 6% for adverse alcohol use to 45% for anxiety/depression among current elite athletes, and from 18% for distress to 29% for anxiety/depression among former elite athletes. A higher number of past severe injuries, higher number of past surgeries, higher number of recent life events, higher level of career dissatisfaction and lower level of social support were related to the occurrence of symptoms of common mental disorders among both current and former elite athletes. On average, the 4-week prevalence of common mental disorders as shown in our study among current and former Dutch elite athletes were similar to the ones found among athletes from other sports disciplines and does compare with the lifetime prevalence estimates in the general population of the Netherlands. 相似文献
5.
Currently, there is no overview of the incidence and (volleyball-specific) risk factors of musculoskeletal injuries among volleyball players, nor any insight into the effect of preventive measures on the incidence of injuries in volleyball. This study aimed to review systematically the scientific evidence on the incidence, prevalence, aetiology and preventive measures of volleyball injuries. To this end, a highly sensitive search strategy was built based on two groups of keywords (and their synonyms). Two electronic databases were searched, namely Medline (biomedical literature) via Pubmed, and SPORTDiscus (sports and sports medicine literature) via EBSCOhost. The results showed that ankle, knee and shoulder injuries are the most common injuries sustained while playing volleyball. Results are presented separately for acute and overuse injuries, as well as for contact and non-contact injuries. Measures to prevent musculoskeletal injuries, anterior knee injuries and ankle injuries were identified in the scientific literature. These preventive measures were found to have a significant effect on decreasing the occurrence of volleyball injuries (for instance on ankle injuries with a reduction from 0.9 to 0.5 injuries per 1000 player hours). Our systematic review showed that musculoskeletal injuries are common among volleyball players, while effective preventive measures remain scarce. Further epidemiological studies should focus on other specific injuries besides knee and ankle injuries, and should also report their prevalence and not only the incidence. Additionally, high-quality studies on the aetiology and prevention of shoulder injuries are lacking and should be a focus of future studies. 相似文献
6.
Fiona Samuels Jari Kivela Dhianaraj Chetty Joanna Herat Chris Castle Evert Ketting 《Sex education》2013,13(2):204-213
Drawing on evidence from a wider study on the cost and cost-effectiveness of sexuality education programmes in six countries, and focusing on the examples of India and Nigeria, this paper argues that advocacy is a key, yet often neglected component of school-based sexuality education programmes, especially where sex and sexuality are politically or culturally sensitive issues. It also suggests that advocacy is not a one-off activity but needs to be carried out continuously and adapted as contexts and needs change. Overall, this piece recommends that advocacy should be a key component of sexuality education work, and needs to be planned and budgeted for. Without such investment, country-level sexuality education programmes are likely to fail. 相似文献
7.
Influences of phonological awareness and naming speed on the speed and accuracy of Dutch children's word recognition were investigated in a longitudinal study. The speed and accuracy of word recognition at the ends of Grades 1 and 2 were predicted by naming speed from both the beginning and end of Grade 1, after control for autoregressive relations, kindergarten letter knowledge, and vocabulary knowledge. Phonological awareness at the beginning of Grade 1 predicted only the accuracy of word recognition at the end of Grade 1. No evidence was found for reciprocal influences of word recognition skills on later phonological awareness or naming speed. 相似文献
8.
9.
Maaike Cornelissen Ellen Kemler Evert Verhagen Vincent Gouttebarge 《Journal of sports sciences》2020,38(17):1953-1974
ABSTRACT The purpose of this study was to gather information from scientific literature related to all steps of Van Mechelen’s “sequence of prevention” for injuries applied to youth and adult recreational field hockey players. A systematic review was conducted in Medline via Pubmed and in SPORTDiscus via EBSCOhost. Twenty-six original studies were included. Regarding injury incidence (step 1) results showed several overall injury incidence rates (youth: 1.47 per 1,000 Athlete Exposure (AE) time-loss (TL) injury up to 11.32 per 1,000 AE TL ánd non-time loss (NTL) injury, adults: 2.2 NTL injury per 1,000 AE, 15.2 injury per 1,000 hours of sports participation). Considering games and practices, most injuries were sustained in games (youth: 4.9, adults: 7.87 per 1,000 AE). Considering body parts, highest injury incidence rates were found in body parts in the lower extremities (youth: knee injuries in games (0.33 per 1,000 AE), adults: hamstring injuries in pre-season (0.75 per 1,000 AE)) and injuries in the head/face/eye (youth: 0.66 and adults: 0.94 head/face/eye, 0.71 head/face and 0.63 concussion per 1,000 AE). Regarding aetiology (step 2), no studies were found. Regarding the efficacy of available interventions (step 3 and 4), one study was found among youth players, describing a warm-up programme. 相似文献
10.
Matti Mäntymäki Jani Merikivi Tibert Verhagen Frans Feldberg Risto Rajala 《International Journal of Information Management》2014
Academics and business practitioners are intrigued by the factors that foster continued user engagement in virtual worlds (VWs). It is unclear how, and to what extent, existing theories can explain their continued use. As young people constitute the majority of VW users, understanding the reasons for their continued use intentions is important. Taking the distinctive features of VW services into account, such as the visibility of users’ actions to other users, we contextualize the Theory of Planned Behavior and investigate the role of teenagers’ attitudes, social influences and perceived behavioral control as the determinants of their continued intention to use VW. We then apply a set of constructs from prior Information Systems (IS) literature to decompose these constructs. By analyzing primary data collected from 923 users of Habbo Hotel, a leading virtual world for teenagers, this study confirms the role of users’ intrinsic motivation, interpersonal influence and self-efficacy as key constituents of sustained user engagement in VWs. In addition, we demonstrate that decomposing these three established constructs can capture many of the key contextual characteristics of VWs. The study contributes to the literature by showing that IS theories and constructs are appropriate for the VW setting and teenage users. 相似文献